Patents by Inventor Hans-Dieter Zettel

Hans-Dieter Zettel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Machine housing
    Patent number: 4637196
    Abstract: In order to protect operating personnel from injury and to facilitate access, a machine housing has a plurality of wall portions, such as plates and doors. In order to facilitate rapid mounting of these wall portions, horizontally offstanding L-angle brackets forming ribs are disposed on the frame of the machine, and grooved clamping elements are provided that can be firmly clamped to the ribs via screw fasteners. The wall portions are joined with these clamping elements.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: January 20, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Erwin Berner, Hans-Dieter Zettel